Douglas Lloyd LOCKHART

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Cobble Hill, CA

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Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for HVAC/R system analysis
- Patent number 9,880,031
- Issue date Jan 30, 2018
- Douglas Lloyd Lockhart
- G01 - MEASURING TESTING
Information Patent Grant
Manifold for refrigeration system
- Patent number 8,844,567
- Issue date Sep 30, 2014
- Douglas Lloyd Lockhart
- F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information Patent Grant
Pressure measurement system for refrigeration system
- Patent number 5,311,745
- Issue date May 17, 1994
- Digi-Cool Industries Ltd.
- Douglas L. Lockhart
- F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...

Patents Applicationslast 30 patents

Information Patent Application
METHOD AND APPARATUS FOR HVAC/R SYSTEM ANALYSIS
- Publication number 20150177109
- Publication date Jun 25, 2015
- Douglas Lloyd LOCKHART
- G01 - MEASURING TESTING
Information Patent Application
APPARATUS AND METHOD FOR CONTROLLING REFRIGERANT TEMPERATURE IN A H...
- Publication number 20140069122
- Publication date Mar 13, 2014
- Douglas Lloyd Lockhart
- F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information Patent Application
MANIFOLD FOR REFRIGERATION SYSTEM
- Publication number 20110120578
- Publication date May 26, 2011
- Douglas Lloyd LOCKHART
- F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...